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Joakim Schürer

PROFILE

Joakim Schürer

Over five months, contributed to Sundsvallskommun’s api-service-messaging, api-service-invoice-sender, and api-service-email-reader repositories by building and refining backend features focused on reliability, data integrity, and traceability. Delivered enhancements such as batch history APIs with per-user filtering, robust error handling for invoice processing, and batch ID propagation across message types. Addressed issues like case-sensitivity in messaging, redundant delivery history entries, and email deletion safeguards for no-reply senders. Applied Java, Spring Boot, and SQL to implement integration tests, input validation, and OpenAPI documentation updates. Maintained code quality through refactoring, test automation, and configuration management, ensuring maintainable and auditable service workflows.

Overall Statistics

Feature vs Bugs

46%Features

Repository Contributions

25Total
Bugs
7
Commits
25
Features
6
Lines of code
7,942
Activity Months5

Work History

September 2025

2 Commits • 1 Features

Sep 1, 2025

Month: 2025-09 — Sundsvallskommun/api-service-messaging: Delivered batch ID propagation across all message types and history, updated handling/mapping services, and added integration tests to validate presence and format of the batch ID. Fixed a SonarQube issue by removing a duplicate test, reducing maintenance noise. This work enhances traceability, auditing, and test coverage while aligning with quality gates.

July 2025

2 Commits

Jul 1, 2025

July 2025: Key outcomes across two services: - api-service-email-reader: Email Deletion Safeguard for No-Reply Senders — prevents deleting emails from no-reply addresses; shifts responsibility to the support-management workflow; logs deletions for traceability. Commit 624f29520c7c27e4b4d6d9acf5e10dcc0a2ee844 (UF-16673). Business value: reduces risk of data loss and improves accountability. - api-service-invoice-sender: XML Data Cleaning — Trim Whitespace in XmlUtil — reinstates trim for XML node text content to standardize getTextContent output and improve reliability of data extraction. Commit 356de2e7bf246cbf2f6d8317327d52d913b9bd52 (HYDRAN-115). Business value: more reliable data for downstream invoicing. Impact: improved data integrity, traceability, and reliability; reduced risk of misprocessed invoices. Technologies/skills: XML processing, logging/tracing, utility maintenance, commit-based change management, cross-service collaboration.

June 2025

10 Commits • 2 Features

Jun 1, 2025

June 2025: Delivered batch history API enhancements, strengthened delivery history data integrity, and consolidated internal batch resource testing. Enabled per-user batch history access, robust batch filtering with pagination validation, and aligned OpenAPI/spec/docs, while expanding test coverage for batch resources and maintaining data accuracy across message delivery history.

May 2025

9 Commits • 3 Features

May 1, 2025

May 2025: Reliability, observability, and test stability improvements across two services. Key features delivered include enhancements to invoice processing reliability and reporting, improved statistics data access performance, and strengthened test reliability for messaging and SMS workflows. The work delivered aligns with business goals of reducing processing failures, improving stakeholder visibility, and enabling faster analytics feedback.

April 2025

2 Commits

Apr 1, 2025

April 2025 (2025-04) – Sundsvallskommun/api-service-messaging: Focused on reliability and interoperability of the messaging API. Delivered two high-impact bug fixes that align with the oep integrator service and ensure correct request formatting. Impact: reduced case-sensitivity related messaging errors and ensured Feign client sends proper JSON payloads; tests updated to prevent regressions.

Activity

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Quality Metrics

Correctness88.8%
Maintainability90.0%
Architecture86.4%
Performance81.6%
AI Usage20.8%

Skills & Technologies

Programming Languages

HTMLJavaSQLYAML

Technical Skills

API DevelopmentAPI IntegrationBackend DevelopmentCode FormattingCode RefactoringConfiguration ManagementDatabase IntegrationEmail IntegrationEmail ProcessingError HandlingFeignInput ValidationIntegration TestingJPAJUnit

Repositories Contributed To

3 repos

Overview of all repositories you've contributed to across your timeline

Sundsvallskommun/api-service-messaging

Apr 2025 Sep 2025
4 Months active

Languages Used

JavaYAMLSQL

Technical Skills

API DevelopmentAPI IntegrationBackend DevelopmentFeignSpring BootValidation

Sundsvallskommun/api-service-invoice-sender

May 2025 Jul 2025
2 Months active

Languages Used

HTMLJavaYAML

Technical Skills

Backend DevelopmentConfiguration ManagementEmail IntegrationError HandlingIntegration TestingJava

Sundsvallskommun/api-service-email-reader

Jul 2025 Jul 2025
1 Month active

Languages Used

Java

Technical Skills

Backend DevelopmentEmail ProcessingLogging